A knife gate valve is a simple mechanism consisting of a gate that goes up and down instead of turning to let the fluids flow through. One good thing about this valve is its design. It is not bulky unlike other valves and does not take much space in any plumbing system, aside from the knob to raise and lower the gate. Common installations for these kinds of valves are for fluids especially those that flow at quite a high rate of pressure. The industry can pretty much utilize these gate valves for any liquid it may carry, however, the right kind and size of valve has to be carefully considered in order to maximize the valve’s capacity and durability.